Slicing machine



June 19, 1928. 1,674,385

w. B. WOLFF SLIGING MACHINE Filed May 2l, 1926 June 19, 1928.

W. B. WOLFF SLICING MACHINE 2 sheets-sheet 2 Filed May 21, 1926 PatentedVJ une 19, 1928.

UNITED l'STATES y i 1,674,385 PATENT oFFlcE.

WALLACE B. WOLFF, F CHICAGO, ILLINOIS, ASSIGNOB TO AMERICAN SLICING MA-CHINE COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

SLICING MACHINE.

Application tiled lay 21,

M invention relates to an improvement in s icing machines andparticularly of a yieldingly actuated meat end plate or pusher plate foruse with a slicing machine having a rotary knife and a meat supportingcarriage adapted to be moved across such knife. One object is theprovision of means for maintaining a generally even thrust of feedplateand meat toward the knife. Anlother object is the provision ofmeans for compensating for the differences in position of the-meat platein relation to the pressure or tension of the yielding actuating means.Other objects will appear from time to time 16 in the course of thespecification and claims.

I illustrate my invention more or less diagrammatically 1n theaccompanying drawings, wherein- Figure 1 is a side elevation; Figure 2is a partial plan view; Figure 3 is a section on the line 3 3 of Fi re1,

Figure 4 is a section on the line 4-4 of Figure 1;

Figure 5 is a section on the line 5-5 of Figure 4; and Figure 6 isFigure 4.

Like parts are indicated by like symbols throughout the specica-tion andclaims.

A indicates any suitable base member for a slicing machine supportingthereon any suitable frame structure u on which is mounted the gaugeplate B, t e guard plate Bl and the rotary knife B2. These are notillustrated in detail and it will be understood that the showing ispurely diagrammatic and that the particular knife gauge plate, guardplate and frame structure do not form part of the present invention andthat my meat end or feed plate and means for actuating it ma be usedwith a wide variety of slicin mec anisms.

C indicates a track herein shown as in circular cross section upon whichis slidably mounted the reciprocating meat support generally indicatedat C1. A downwardly depending portion thereof generally indicated as C2engages the guide track C? for example by the bracket member C4 with thefiber bearing stud C5 and the underlying menu ber C6 with the adjustingbolt C] and its lock nut C. C is a guide rod.mounted upon the meatsupport Cl and Cu C12 are meat supporting plate members of extended asection on .the line 6-6 of 1926. Serial No. 110,622.

area. Mounted on the frame C1 is any suitable handle member Clo wherebythe carriage may be moved Aalong the tracks C and C.

Mounted to slide along the rod C is the meat and plate structure properwhich consists of a forward plate D having pins or teeth D thereupon, asleeve D2 surrounding and slidable upon the rod C9 and a reinforcing andhandle member D3 extending from the upper corner D4 of the plate D tothe inner end of the sleeve D2.

Mounted `upon the frame Cl is the pulley shaft or stud E about whichrotates a double pulley member includin the small pulley El and thelarge pulley 2, the two pulleys being integral or held against relativerotation. F astened to the smaller pulley E1 and assing thereabout is achain or flexible mem er E the outer end of which is se-l cured to atension member, herein shown as lthe spiral spring E* the outer end ofwhich is secured as at E5 to the outer end of the frame C1. Secured asat E to the periphery of the larger pulley Ez is the chain member Elrwhich passes thereabout and is secured at its opposite end as at EB tothe sleeve D2 of the meat and plate D.

Itl will be realized that whereas I have described and shown anoperative device that nevertheless many changes might be made in thesize, shape, number and disposition of parts without departing from thespirit of my invention and I wish therefore that my showing be taken asin a sense diagram matic rather than as limiting me to my specificshowing.

The use and operation of my invention are as follows:

I have developed a meat end plate or pusher plate adaptable for use withthe general class of slicing machines wherein a,

rotary knife has associated with -it a meat carriage which may be movedback and forth across the face of the knife, whereby material positionedupon the carriage may be sliced by the action'of the knife. Theparticular details of the slicing machine do not form part of thepresent invention. However I illustrate my meat end plate as applied toa carriage upon which are mounted the meat supporting plane facedmembers Cu and C12 set at an angle to each other. They are separated attheir inner ed es by the space wherein or beneath which lies the guiderod C". Along this rod the meat end plate proper travels, its edgesconforming generally to the faces of the two members C11 and C". It willbe noted that the meat end plate is rotatable about the rod C", which iscircular in cross section but that throughout the major part of itsexcursion is held against relative rotation by its enagement with themembers C11 4and C12.

owever C12 stops short of the end of the rod C and when the meat endplate, on its rearward excursion has cleared the member C, it may berotated into ali ment with the end of the member C12, whic then servesas a stop to prevent forward movement of the meat end plate.

The propulsive impulse for the meat end plate is provided with anysuitable yielding member, for example the tension spring E'. In order toprovide as even a. thrust as possible I refer to gear up the connectionbetween t e sprintf and the meat end plate, so that there will be aminimum change in tension upon the spring and a corresponding minimumchange in the`thrust upon the plate, as the end plate moves from one endof the trough or carriage to the other. l have effected this result b soproportioning the diameters of the pul cys E1 and E2 to each other andto the length of the spring E that a negligible change in the length andtension of the spring E* takes place during the entire operativeexcursion of the meat end plate from the outer to the inner end of t-herod C. The spring E4 of course is made of sufficient strength easily toactuate the meat end plate, .and the result is an even uniform thrust ofthe end plate and meat against the gauge plate B and toward the knifeB2. Where 1n the claims, I employ the term means for equalizing theresultant im ulse, or its equivalent, I Wish the claim to he understoodas calling for means for so reducing the difference in thrust of themeat against the plate at the beginning and the end of the excursion, asto render its effect on the thickness of the slice substantially nil.This obviates the tendency of unevenness in the slicing which occurswhen a bearing thrust is directed against the gauge plate, since inoperative differences with the ordinary slicing machine the gauge plateto some degree responds to differences in pressure and differences inthickness of slice result.

I claim:

1. The combination with a slicing machine, of a carriage and a` pusherplate mounted for movement therealong, ielding means tending normally tomore said7 pusher plate along said carriage, and means interposedbetween the plate and said yielding means, for equalizing the resultantimpulse.

2. The combination with a slicing machine, of a carriage and a pusherlate mounted for movement therealong, yie ding means tending normally tomove said pusher plate along saldfcarrlage,4 and means for equalizingthe resultant impulse, comprising a differential element between saidyielding means and the pusher plate. D

3. The combination with a slicing machine, of a carriage and a pusherplate mounted for movement therealong, yielding means tending normallyto move said pusher plate along said carriage, and means for equalizingthe resultant impulse, said yielding means and equalizing means thereforincluding a plurality of sheaves held against relative rotation, aflexible driving element secured to one of said sheaves and to the meatend plate, a flexible driving member secured to the other of saidsheaves, and yielding means adapted to .apply tension to said secondflexible driving member.

4. The combination with a slicing Inachine, of a carriage and a pusherplate mounted for movement therealong, yielding means tending normallyto move said pusher plate along said carriage, and means for equalizingthe resultant impulse, said yielding means and eqnalizing means thereforincluding a plurality of' sheaves held against relative rotation,aflexible driving element secured to one of said sheaves and to the meatend plate, a flexible driving member secured to the other of saidsheaves, and yielding means adapted to apply tension to said secondflexible driving member, -including a tension s ring.

5. The com ination with a slicing machine, of a carriage and a pusherplate mounted for movement therealong, ielding means tending normally tomove said7 pusher plate along said carriage, means for equalizing theresultant impulse, said yielding means and equalizing means thereforincluding a flexible driving means, a differential element inserted insaid driving means, and yielding means adapted to apply tension to saidflexible drivingr means.

6. The combination with a slicing machine, of a carriage and a pusherplate mounted for movement therealong, ielding means tending normally tomove saidI pusher plate along said carriage, means for equalizing theresultant impulse, said yielding means and equalizing means thereforincluding a plurality of sheaves mounted for rotation upon said carriageand held against relative rotation, said sheaves being of unequaldiameter, a flexible connection between the larger of said sheaves andthe pusher plate, a flexible driving member secured to the larger ofsaid sheaves and yielding means adapted to apply tension to saidflexible driving member.

7. The combination`with a work supporting carriage for a slicingmachine, including a plurality of relatively extended plane snrfacedsupporting 'members, of a pusher plate axiall movable therealong, the edes of the us er plate conforming genera to the aces of said members, auide ro along which said pusher plate is axially movable, and aboutwhich it is rotatable, one of said supporting members terminating shortof the other, to permit rotation of the pusher plate into alignmenttherewith.

8. The combination with a work su porting carriage for a slicingmachine, inc uding a plurality of relatively extended plane surfacedsupporting members, of a pusher late axially movable therealong, the edo the usher plate conforming general y to the aces of said members, aguide rod along which said pusher plate is axially movable said pusherplate being rotatable about said guide rod, at the outer end of itsexcursion, and means for holding it a ainst such rotation throughout asubstantial proportion of the length of such rod.

9. In a slicing machine having a rotary knife, a work supportingcarriage and means for moving it across the face of said knife, a pusherplate mounted upon said carriage for movement thereon toward the planeof said knife and guiding means therefor including a track secured ateach end to the longitudinal movement of the pusher plate.

10. In a slicing machine having a rotary knife, a Work supportingcarriage and means for moving it across the face of said knife, a pusherplate mounted upon said carriage for movement thereon toward the planeof the knife, and guiding means therefor including a track mounted onthe work supportin carriage, said pusher pate being rotata le inrelation to said trac said carriage including a plurality of planesurfaced side eleinents, said pusher plate conforming generally to thesurfaces of said e1e ments and bein normally held thereby againstrotation a out said track, one of said elements terminating short of theother and being adapted to serve as a stop member to prevent forwardmovement of the pusher plate when the pusher plate is rotated about thetrack and into alignment therewith.

Signed at Chicago county of Cook and State of Illinois, this 19th day ofMa 1926.

WALLACE B. WO FF.

